package com.atguigu.java1;

/*
 * 接口的应用：代理模式
 */
public class A3NetWorkTest {
    public static void main(String[] args) {
        Server server = new Server();
//		server.browse();
        ProxyServer proxyServer = new ProxyServer(server);

        proxyServer.browse();
    }
}


interface NetWork {
    public void browse();
}


//被代理类
class Server implements NetWork {
    @Override
    public void browse() {
        System.out.println("真实的服务器访问网络");
    }
}


//代理类
class ProxyServer implements NetWork {

    private NetWork work;

    public ProxyServer(NetWork work) {
        this.work = work;
    }


    public void check() {
        System.out.println("联网之前的检查工作");
    }

    @Override
    public void browse() {
        check();
        work.browse();
    }
}
